Capella Microsystems' (Santa Clara, Calif.) Filtron family of ambient light sensors eliminates excessive backlighting in portable products including notebook computers, cell phones, DVD players, PDAs, MP3 players, iPods and GPS, thereby preserving battery life in these devices. These chips detect the amount of ambient light and adjust the LCD brightness to match the requirements of the human eye, said the company.
The CM3200HS (High Sensitivity), CM3200 and CM3000 light sensors integrate an optical filter, photo diode, digital filter and 9-bit D/A converter that produces an analog output that varies linearly as the ambient light. The CM3200HS operates with ambient light ranges from 0.5 Lux to 350 Lux, and the CM3200 operates in ranges of 10 Lux to 10K Lux. The CM3000 uses an external resistor to set the threshold of an internal comparator that produces an on or off output for the desired ambient light range, said the company. Power consumption is typically 80 microamps and less than 1 nA with a shutdown feature. Voltage operation is 2.7 to 5.5 volts.
Combining a small footprint with high performance, Ironwood Electronics' (Eagan, Minn.) SG-QFE-7000 10+ GHz bandwidth socket (<-1 dB at 10.0 GHz) supports very dense pitch QFP devices. This includes Texas Instruments' 0.4-mm pitch, 14-mm body power pad QFP ICs.
The SG-QFE-7000 socket is designed to dissipate up to several watts without extra heat sinking and can handle up to 100 watts with a custom heat sink. The contact resistance is typically 23 milliohms per pin. The socket connects all 28 pins and the center power pad with a 10+ GHz bandwidth on all connections.
The SG-QFE-7000 is constructed with a high performance and low inductance elastomer. Key specifications include a pin inductance of 10.15 nH and a capacitance to ground rating of 0.10 pF. The operating temperature range is -35°C to 85°C.
International Rectifier's (El Segundo, Calif.) IRS21xx and IRS21xxx additions to its line of G5 500- and 600-volt high-voltage integrated circuits (HVICs) are also among this week's hottest products at eePC.
The analog ICs, comprising half-bridge and high- and low-side drivers, tout an advanced high-voltage, level-shifting technology to facilitate superior electrical over-stress protection and higher field reliability. These devices have passed a 2000-hour high-temperature test.
For details on the top ten products of the week, click on links below:
JKL Components' LEDs
ADI's high-definition multimedia interface ICs.
Capella Microsystems ambient light sensors
Ironwood's 10 GHz socket supports QFP ICs
International Rectifier's high-voltage ICs
Amherst Systems Associates's ASAM1 Waveform Viewer
Linear Technology's dual-section LTC6244 CMOS op amps.
Maxim's 2.3 Gsps digital-to-analog converter
Microchip Technology Inc.'s PICkit 2 development programmer
Jungo Software Technologies' USBware Embedded USB Software Stacks